A/C AND AV SWITCH ASSEMBLY : Diagnosis Procedure

WARNING: This page is about a different car, the 2010 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CHECK FUSE

Check that the fuse of the AC and AV switch assembly is not blown.

SIGNAL REFERENCE

Unit	Terminal	Signal name	Fuse No.
A/C and AV switch assembly	2	Ignition switch ACC or ON	4

Is the fuse OK?

YES: GO TO 2.

NO: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

POWER SUPPLY CIRCUIT CHECK

Disconnect A/C and AV switch assembly connector M98.

Check voltage between the A/C and AV switch assembly connector M98 and ground.

VOLTAGE SPECIFICATION

(+)		(-)	OFF	ACC	ON
Connector	Terminal	(-)	OFF	ACC	ON
M98	2	Ground	0V	Battery voltage	Battery voltage

Fig 1: Checking Voltage Between A/C And AV Switch Assembly Connector M98

Courtesy of NISSAN MOTOR CO., U.S.A.

Are the voltage results as specified?

YES: GO TO 3.

NO:

Check connector housings for disconnected or loose terminals.
Repair harness or connector.

GROUND CIRCUIT CHECK

Turn ignition switch OFF.

Check continuity between A/C and AV switch assembly harness connector M98 and ground.

CONTINUITY CHART

Connector	Terminal	-	Continuity
M98	1	Ground	Yes

Fig 2: Checking Continuity Between A/C And AV Switch Assembly Harness Connector M98

Courtesy of NISSAN MOTOR CO., U.S.A.

Are the continuity results as specified?

YES: Inspection End.

NO: Repair harness or ground.